Leinster Gardens is a street in Bayswater, London. It has two false façades at numbers 23 & 24, constructed at the time of the original steam engine-hauled underground railway that had a short section exposed to the surface.[1][2]
Locomotives were fitted with condensers to reduce fumes, but "venting off" was still needed in open-air sections to relieve the condensers and keep the tunnels free from smoke.[3] In this upmarket area, the railway company hid this unsightly practice from residents. The false façade also maintained a continuous frontage along a prestigious terrace.[4]
The façade is 5 feet (1.5 m) thick[5] with 18 blackened windows.[3] The doors have no letter boxes.[6]
In the 1930s, a hoax was played on guests who were sold ten-Guinea tickets to a charity ball at Leinster Gardens, only to turn up in evening dress to discover the address was fake.[3]
Adjacent streets and areas include Queensway and Craven Hill Gardens.